NCP81119
http://onsemi.com
6
ELECTRICAL CHARACTERISTICS
Unless otherwise stated: −10°C < T
A
< 100°C; V
CC
= 5 V; C
VCC
= 0.1 mF
Parameter Test Conditions Min Typ Max Unit
ERROR AMPLIFIER
Input Bias Current
@ 1.3 V −25 25
mA
Open Loop DC Gain CL = 20 pF to GND,
RL = 10 kW to GND
80 dB
Open Loop Unity Gain Bandwidth CL = 20 pF to GND,
RL = 10 kW to GND
20 MHz
Slew Rate
DVin = 100 mV, G = −10 V/V,
DVout = 1.5 V – 2.5 V,
CL = 20 pF to GND,
DC Load = 10k to GND
20
V/ms
Maximum Output Voltage I
SOURCE
= 2.0 mA 3.5 V
Minimum Output Voltage I
SINK
= 2.0 mA 1 V
DIFFERENTIAL SUMMING AMPLIFIER
Input Bias Current
VSP, VSN = 1.3 V −15 15 uA
VSP Input Voltage Range −0.3 3.0 V
VSN Input Voltage Range −0.3 0.3 V
−3dB Bandwidth
CL = 20 pF to GND,
RL = 10 kW to GND
10 MHz
Closed Loop DC gain
VS+ to VS− = 0.5 to 1.3 V
1.0 V/V
CURRENT SUMMING AMPLIFIER
Offset Voltage (Vos)
−300 300
mV
Input Bias Current CSSUM = CSREF= 1 V −10 10
mA
Open Loop Gain 80 dB
Current Sense Unity Gain Bandwidth
C
L
= 20 pF to GND,
R
L
= 10 kW to GND
10 MHz
CURRENT BALANCE AMPLIFIER
Maximum CSCOMP Output Voltage
I
source
= 2 mA 3.5 V
Minimum CSCOMP Output Voltage
I
sink
= 500 mA
0.1 V
Input Bias Current CSP
1−4
= CSN
1−4
= 1.2
−50 50
nA
Common Mode Input Voltage Range CSPx = CSNx 0 2.3 V
Differential Mode Input Voltage Range CSNx = 1.2 V −100 100 mV
Input Offset Voltage Matching CSPx = CSNx = 1.2 V,
Measured from the average
−1.5 1.5 mV
Current Sense Amplifier Gain 0 V < CSPx − CSNx < 0.1 V, 5.7 6.0 6.3 V/V
Multiphase Current Sense Gain Matching CSP−CSN = 10 mV to 30 mV −3 3 %
−3dB Bandwidth 8 MHz
INPUT SUPPLY
Supply Voltage Range
4.75 5.25 V
VCC Quiescent Current EN = high, PS0,1,2 Mode 25 mA
EN = high, PS3 Mode 15 mA
EN = low 30
mA
3. Guaranteed by design or characterization data, not in production test.
